Pulse-width modulation for operating high pressure lamps
US6815907B2 · kind B2 · utility
18Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | May 7, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high pressure lamp is driven with a pulse width modulated, alternating current pulses having an absolute value that is substantially constant and a short term average that varies approximately sinusoidally.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.